Intermec 6640 Reference Guide

As you prepare to develop applications for the 6640 ComĆ

puter (or port existing applications), keep in mind the

following basic suggestions:

"

Windows 98 is the operating system.  If you are expeĆ

rienced with this operating system, you should be able

to start developing or porting applications.

"

Become familiar with the tools and techniques for

power management.  Monitoring the state of battery

power and using the suspend/resume feature can be

an especially critical function.

"

When developing for pen input, remember that interĆ

preting handwriting is still a developing field; accuraĆ

cy has not yet reached 100 percent.  Furthermore, inĆ

terpreting and storing the results puts an additional

load on the processor.  Excessive use of handwriting

recognition software can slow down an otherwise

speedy application.  Instead, try to use buttons, item

lists, and pullĆdown menus for common tasks.

"

When designing a pencentric interface, make full use

of the area provided by the SVGA screen.  Make butĆ

tons, pullĆdown menus, text entry fields, etc. large

enough for easy, accurate use in a mobile or highĆpresĆ

sure environment.

"

Make your applications driveĆindependent.  Do not

hardĆcode drive designations.  Utilize the many availĆ

able PC Card storage solutions, remembering that the

devices can be moved about as required by different

configurations.  The PC Card slots can accept flash,

hard disk devices, RF devices, radio or Local Area NetĆ

work (LAN) modems, and other devices.

"

Keep in mind the general system design of the target

6640 Computer:  file system (hard drive or 80 MB or

220 MB Solid State device), an SVGA screen and keyĆ

pad that are builtĆin, etc.